19 Y/o- Aspiring Entrepenuer

I recently turned 19, and I've dropped out of college after my first semester. I knew school wasn't for me, and I didn't even know what I wanted out of it in the first place. I've been thinking a lot about what I want to do, and I've been very stuck and don't know how to act. I'll list my goals/objectives.

I want to have multiple different businesses - I want to be able to scale these as well. I know people who own a bunch of dumpsters and a bunch of atms which make them good money, and both of them just keep getting more. I want to be able to have at least one business like this.

I want a steady income as well, whether I get a job in trade or somewhere else. The goal is to be able to retire this job as quickly as possible, this is how I will perceive my success. But I need a reliable income that doesn't rely on certain factors like is business doing good or not, just a steady rate that will always be there.

I know this is a reach, but I want to be making 300+ when I'm older. I get told a lot by family and friends that I don't need to rush anything and I'm still young and have time to figure things out, but I know that I need to start now if I want to get to something like this. Honestly if we factor in inflation, in 15-20 years I'd like to be making 400+ to be living comfortable.

These are my main 3 objectives, I will also have smaller ones to help me reach this goal. What I need help most with, is figuring out what I can/have to do. Starting at my young age, what is the first thing I should be investing my money into to build capitol or after building capitol to start and support these businesses, and how should I manage that. Whether that be online or physical investments. What should be the types of businesses I should aim to get into, and have and scale in the future. Like I mention before about the dumpsters and atms, from what I've seen they're very good side gigs and have lots of potential, so I've been interested in those, but I would still like to get more ideas of whats out there and what I can do. I'm just trying to figure out and absorb as much information as I can and start while I'm still young, so every kind of help would be appreciated.